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RFI - Attachment C - Civil Engineering Response · 132008.1128.04
CALIBRE PROFESSIONAL SERVICES PTY LTD
PO Box 997 | Buddina QLD 4575
K1 Building, Level 3, 16 Innovation Parkway | Birtinya QLD 4575
+61 7 5314 2520 | ABN 55 070 683 037 | www.calibregroup.com
Our Ref: 18-001942SCC35.SP.rl.docx
Your Ref: 132008.1128.04
Contact: Mr Shaun Pilcher
1 September 2020
Noosa Council
PO Box 141
TEWANTIN QLD 4565
Attention: Mr Patrick Murphy
Dear Patrick
Sunrise Beach Aged Care Facility - Minor Change Application
Reference No.: 132008.1128.04
Response to Request for Further Information
We refer to Council’s Request for Further Information dated 20 August 2020 in relation to the above Minor Change Application
and provide the following additional information in relation to the Engineering items:
3. Issue
In regards to water quality, the changed application states:
The proposed redesign does not fundamentally affect the proposed stormwater management for the site.
Importantly, the stormwater network and treatment systems have been approved under OPW19-0020. This
approval included a 50m2 bio basin and 45m2 infiltration basin located along the northern boundary of the site.
These basins have been retained in the proposed design, albeit with minor reshaping of the bio basin. The
stormwater network is shown on drawing 5002-106(B) and 5002-400(B). A change application for OPW19-0200 will
be required in the future to reflect the changes to the stormwater basins.
Assessment documentation for the sizing of the water quality treatment systems for the RAC site (OPW19/0047)
and the Retirement Living Sites (OPE19/0020) identified that the water quality treatment provided to serve the RAC
site were undersized (56% deficit) and the Retirement living site were oversized, but that combined they allowed
for the required water quality treatment to be achieved. The current approved staging whereby part of the
Retirement Living was to be constructed first meant that when the RAC was built – the pollution reduction targets
would be achieved for the overall development.
The new proposed staging whereby the RAC is proposed to be built first, means that the situation no longer exists
whereby the overall pollution reduction will be achieved when the RAC is first built. The unknown timeframe of
delay between proposed commencement of use of the RAC and the now delayed construction commencement for
the Retirement Living also means that the overall development will not achieve the required pollution reduction
targets until such time as the Retirement Living development commences.
Advice Required
Demonstrate how the required pollution reduction targets will be achieved for the development during the
timeframe where the RAC site is operational prior to development of the Retirement Living stage.
Please refer to the attached Technical Memo for the response to this item
4. Issue
A rerun of the previously supplied MUSIC model with the additional 1,298m3 site cover (coarsely added to the RAC
site as roof area, with no other adjustments made) identified that the TSS pollution reduction for the combined site
would fall short of 80% reduction in total suspended solids.
Advice Required
Demonstrate that the overall development will still achieve the required pollutant reduction targets by:
Provision of an updated MUSIC model that reflects the proposed changes;
OR
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(continued) 1 September 2020
Provision of a table that lists the area and corresponding impervious pervious fractions that should apply to
each source node of the MUSIC model [18-001942-Sunrise_Beach-080420]. This will facilitate for assessment
officers to interrogate the existing model and proposed changes with correct information.
We understand that the “additional” 1,298m 2 is as a result of a change to the way the Site Coverage areas are calculated
and. This does not represent an actual increase in the site coverage (roof area) as indicated in the RFI. The catchment
areas within the MUSIC model represents the actual (measured) catchment areas. The “additional” 1,298m2 is not an actual
increase in site coverage from a water quality catchment area calculation perspective.
5. Issue
The information provided outlines that minor reshaping of the basin will be required. It is not clear how or where
the reshaping will occur and whether sufficient space exists for all components of the basin.
Advice Required
Provide detail design plans in expectation of changes to the respective operational works approvals to
demonstrate that all components of the water quality treatment system will be able to be located within the
development site.
A copy of the updated engineering drawings is attached to this response. The minor reshaping referenced is in relation to
reshaping the biobasin to ensure it is not located under the building, but still retains its minimum required area.
9. Issue
Access and manoeuvring for service and waste collection vehicles:
The access arrangement and layout for the parking area and Service Yard near the main access entry (eastern
access driveway) has been changed.
Advice Required
It is requested that a plan is provided to demonstrate that adequate area is available for the manoeuvring and
turning path for the Waste Collection Truck in accordance with the applicable standards.
Refer to attached drawing 5000-SK004(B) showing the turn path of the waste collection vehicle. For clarity, the vehicle is
proposed to reverse into the service yard (from the turnaround area) to allow the vehicle to exist in forward gear. This
arrangement was requested by Bluecare from an operational safety perspective. The vehicle can enter the site, reverse into
the service year and leave the site in forward gear as indicated on the drawing.
10. Issue
Ambulance parking.
Advice Required
Indicate on plan appropriate ambulance/emergency vehicle parking arrangement on the site. Ambulance parking
space should normally cater for standard urban ambulance vehicle (eg Mercedes Benz Sprinter 519 Bariantric-
Specialist) and patient stretcher movement, and provide a minimum headroom of 3.2m.
Refer to attached drawing 5000-SK004(B) which shows an ambulance vehicle parked at the lay down area, and a standard
B85 entering and using the turn facility while the ambulance is parked.
Please consider this the applicant’s full response to Council’s Request for Further Information. We request that Council now
proceed with the decision stage.
Should you require any further information please do not hesitate to contact the undersigned.
Yours sincerely
Calibre Professional Services Pty Ltd
Shaun Pilcher
Principal Engineer - Urban Development
ATTACHMENTS
1. Engineering Drawings
2. Tech Memo
COPIES
1. Mr David Hudson - Blue Care
2. Ms Chiara Towler - RPS
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